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OpenCloudOS-Kernel/arch/arm/mach-at91/pm.h

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ARM: at91: declare header name Add the header and define the macro to prevent multiple inclusion like the others headers. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2012-01-25 07:56:06 +08:00
/*
* AT91 Power Management
*
* Copyright (C) 2005 David Brownell
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef __ARCH_ARM_MACH_AT91_PM
#define __ARCH_ARM_MACH_AT91_PM
ARM: at91: cpuidle: Convert to platform driver Using the platform driver model is a good way to separate the cpuidle specific code from the low level pm code. It allows to remove the dependency between these two components. The platform_device is located in the pm code and a 'set' function has been added to set the standby function from the AT91_SOC_START initialization function. Each SoC with a cpuidle driver will set the standby function in the platform_data field at init time. Then pm code will register the cpuidle platform device. The cpuidle driver will register the platform_driver and use the device's platform_data as a standby callback in the idle path. The at91_pm_enter function contains a { if then else } based on cpu_is_xx similar to what was in cpuidle. This is considered dangerous when adding a new SoC. Like the cpuidle driver, a standby ops is defined and assigned when the SoC init function specifies what is its standby function and reused in the at91_pm_enter's 'case' block. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-09-23 04:29:57 +08:00
#include <asm/proc-fns.h>
ARM: at91: remove mach/at91_ramc.h and mach/at91rm9200_mc.h mach/at91_ramc.h and mach/at91rm9200_mc.h aren't necessary anymore, remove them. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-16 22:13:39 +08:00
#include <linux/mfd/syscon/atmel-mc.h>
#include <soc/at91/at91sam9_ddrsdr.h>
#include <soc/at91/at91sam9_sdramc.h>
#ifndef __ASSEMBLY__
extern void __iomem *at91_ramc_base[];
#define at91_ramc_read(id, field) \
__raw_readl(at91_ramc_base[id] + field)
#define at91_ramc_write(id, field, value) \
__raw_writel(value, at91_ramc_base[id] + field)
#endif
ARM: 5778/1: AT91: Add cpuidle support This patch adds the support for cpuidle on AT91 SoCs, taken from the cpuidle support in mach-kirkwood. cpuidle needs sdram_selfrefresh_enable and _disable, so move their definition to a separate header file instead of duplicating the code already used in pm.c. Tested-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Albin Tonnerre <albin.tonnerre@free-electrons.com> Acked-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-11-02 01:40:50 +08:00
ARM: at91/pm: move AT91_MEMCTRL_* to pm.h the AT91_MEMCTRL_* defines are only used by the pm code, move them to pm.h Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-17 06:44:38 +08:00
#define AT91_MEMCTRL_MC 0
#define AT91_MEMCTRL_SDRAMC 1
#define AT91_MEMCTRL_DDRSDR 2
ARM: at91/pm: standby mode uses same sram function as suspend to memory mode To simply the PM code, the suspend to standby mode uses same sram function as the suspend to memory mode, running in the internal SRAM, instead of the respective code for each mode. For the suspend to standby mode, the master clock doesn't switch to the slow clock, and PLLA and the main oscillator doesn't turn off as well. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Tested-by: Sylvain Rochet <sylvain.rochet@finsecur.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-09 11:49:46 +08:00
#define AT91_PM_MEMTYPE_MASK 0x0f
#define AT91_PM_MODE_OFFSET 4
#define AT91_PM_MODE_MASK 0x01
#define AT91_PM_MODE(x) (((x) & AT91_PM_MODE_MASK) << AT91_PM_MODE_OFFSET)
#define AT91_PM_SLOW_CLOCK 0x01
#endif